-
The diameter of the front wheel of an engine is 2x cm and that of rear wheel is 2y cm. To cover the same distance, find the number of times the rear wheel will revolve when the front wheel revolves ‘n’ times.
-
-
n times xy
-
yn times x
-
nx times y
-
xy times n
-
Correct Option: C
Number of revolutions of rear wheel
= m (let)
Distance covered by front wheel in 1 revolution
= π × diameter
= 2πx cm.
Distance covered by rear wheel in 1 revolution = 2πy cm
∴ 2πx × n = 2πy × m
| ⇒ m = | |
| y |
